US10472467B2ActiveUtilityA1

Polymers having intrinsic microporosity including sub-units with troger's base and spirobisindane moieties

61
Assignee: DOW GLOBAL TECHNOLOGIES LLCPriority: Sep 20, 2016Filed: Jul 31, 2017Granted: Nov 12, 2019
Est. expirySep 20, 2036(~10.2 yrs left)· nominal 20-yr term from priority
Inventors:Robert E. Hefner, Jr.
B01D 2323/30B01D 69/02C08J 3/24C08G 73/0273B01D 71/60
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Cited by
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References
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Claims

Abstract

A polymer comprising a sub-unit or repeating unit including a spirobisindane moiety and Troger's base moiety linked together by way of a linking group (L) wherein the linking group (L) is represented by Formula III: wherein Z and Z′ are independently selected from an ether and ester functional group.

Claims

exact text as granted — not AI-modified
The invention claimed is: 
     
       1. A polymer comprising a sub-unit comprising a spirobisindane moiety and Troger's base moiety linked together by way of a linking group (L) wherein the linking group (L) is represented by Formula III: 
       
         
           
           
               
               
           
         
       
       wherein Z and Z′ are independently selected from an ether and ester functional group. 
     
     
       2. The polymer of  claim 1  wherein the Troger's base moiety is represented by Formula I: 
       
         
           
           
               
               
           
         
       
       wherein E is an arylene group comprising from 1 to 4 rings; L is a linking group to a spirobisindane moiety and D is selected from: hydrogen, hydroxyl, nitrile, nitro, alkyl, alkoxy, hydroxyalkyl; and carboxylic acid, sulfonic acid and their corresponding salts or esters. 
     
     
       3. The polymer of  claim 2  wherein the Troger's base moiety is represented by at least one of Formula Ia and Ib: 
       
         
           
           
               
               
           
         
       
     
     
       4. The polymer of  claim 1  wherein the spirobisindane moiety is represented by Formula II: 
       
         
           
           
               
               
           
         
       
       wherein A is independently selected from a fused ring structure including from 1 to 4 rings, or is not present, and L is independently selected from a linking group to a Troger's base moiety. 
     
     
       5. The polymer of  claim 4  wherein the spirobisindane moiety is represented by Formula IIa wherein L is independently selected from a linking group to a Troger's base moiety. 
       
         
           
           
               
               
           
         
       
     
     
       6. The polymer of  claim 4  including a sub-unit represented by Formula IV: 
       
         
           
           
               
               
           
         
       
       wherein D is selected from: hydrogen, hydroxyl, nitrile, nitro, alkyl, alkoxy, hydroxyalkyl; and carboxylic acid, sulfonic acid and their corresponding salts or esters. 
     
     
       7. The polymer of  claim 1  comprising a repeating unit comprising a spirobisindane moiety and Troger's base moiety linked together by way of a linking group (L). 
     
     
       8. The polymer of  claim 1  characterized by having an average pore size of from 0.2 to 20 nm as determined by ASTM F316-03 (2011). 
     
     
       9. A membrane comprising the polymer of  claim 1 .

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